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It is equal to the difference between atomic number and Atomic Mass number. A+

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June Douglas

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2y ago

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What term best describes the sum of the number of protons and neutrons in an atom?

Atomic mass or mass number.


What following statement best describes the number of neutrons in an atom?

The number of neutrons in an atom is determined by subtracting the atomic number (number of protons) from the mass number. Neutrons help stabilize the nucleus of an atom by balancing out the positive charge of the protons. Different isotopes of an element have different numbers of neutrons.


Which best describes an atom of carbon-13?

An atom of carbon with 6 protons and 7 neutrons.


What best describes the nucleus of atom?

Nucleus is the centre of an atom and consists of positively charged protons and neutral neutrons.


The sum of the protons and the neutrons will tell the atomic what?

Atomic mass number of the atom. The best way to remember it is: the majority of the mass of an atom is made up of the protons and neutrons (the electrons are very light!), therefore the atomic mass number is the sum of the protons and neutrons.


Which best describes the relationship between subatomic particles in any neutral atom?

Protons are electrically positive charged, electrons are electrically negative charged, neutrons are electrically neutral. The number of electrons and protons is equal in a neutral atom. Protons and neutrons are in the atomic nucleus, electrons on electron shells, forming electron clouds.


What best describes the relative positions of proton neutrons and electrons in an atoms?

In an atom, protons and neutrons are found in the nucleus at the center, forming the atom's core, while electrons orbit around the nucleus in electron shells or energy levels. Protons carry a positive charge, neutrons are neutral, and electrons have a negative charge. This arrangement creates an overall neutral charge for the atom when the number of protons equals the number of electrons. The nucleus is much smaller and denser compared to the space occupied by the electrons.


Which best describes the nucleus of an atom?

The nucleus of an atom is the densest part of an atom. It contains the protons and neutrons of an atom.


Atom X has 9 protons 10 neutrons and 9 electrons Atom Y has 9 protons 9 neutrons and 9 electrons what best describes how Atom X and Atom Y are related?

Atom X and Atom Y are isotopes of the same element, as they have the same number of protons but a different number of neutrons. This difference in neutrons results in different atomic masses for each atom while they both belong to the same element.


What statement best describes the density of an atom's nucleus?

The nucleus of an atom is highly dense, containing nearly all of the atom's mass in a tiny volume. It consists of protons and neutrons packed tightly together. The density of the nucleus is about 100,000 times greater than the overall density of the atom as a whole.


What term best indicates the total number of neutrons and protons in a particular isotope of an element?

The atomic mass number is the sum of the protons and neutrons of an element. The protons are given by the atomic number, so the neutrons can be found by subtracting the mass number by the atomic number. Both the mass and atomic numbers can be found on the periodic table.


What is best described as an atom?

A core of protons and neutrons surronded by electrons.